Argentina · Caldera
Robledo
Blanco, Cerro
- Type
- Caldera
- Elevation
- 4670m
- Last eruption
- -2300
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- Type
- Caldera
- Country
- Argentina
- Region
- South America / Central Andean Volcanic Arc
- Elevation
- 4670m
- Coordinates
- -26.766, -67.746
- Last eruption
- -2300
- Tectonic setting
- Subduction zone / Continental crust (> 25 km)
- Landform
- Caldera
- Major rock type
- Rhyolite
Geological summary
The Cerro Blanco volcanic complex contains the 5-km-diameter Cerro Blanco (or Robledo) caldera in NW Argentina, 80 km SW of the Cerro Galán caldera. Cerro Blanco was the site of the largest known Holocene eruption in the Central Andes about 4,200 years BP (Fernandez-Turiel et al., 2013). The rhyolitic Plinian eruption produced ashfall over about 110 km3 and widespread ignimbrite deposits. The large Cerro Blanco del Robledo lava dome overgrew the SW rim of the caldera and is surrounded by extensive rhyolitic pumice-fall deposits. Satellite geodetic surveys in the central Andes (Pritchard and Simons, 2002) showed subsidence of the caldera in the 1990s.
From Wikipedia
Cerro Blanco is a caldera in the Andes of the Catamarca Province in Argentina. Part of the Central Volcanic Zone of the Andes, it is a volcano collapse structure located at an altitude of 4,670 metres (15,320 ft) in a depression. The caldera is associated with a less well-defined caldera to the south and several lava domes.
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Eruption history
1 recordedGlossaryDetailed timeline
- 2300 BCE (±160 yrs)VEI 7Geological estimate2300 BCE – end unknown
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.